The prevalence of functional constipation in children was unchanged after the Rome IV criteria halved the diagnosis period in Rome III.
Edgar Játiva-MariñoMaritza Gisel Rivera-ValenzuelaCarlos Alberto Velasco-BenítezMiguel SapsPublished in: Acta paediatrica (Oslo, Norway : 1992) (2019)
Modifying the time required for a diagnosis functional constipation from two months to one month did not result in a significant difference in the prevalence.